Electric-lighting apparatus for velocipedes.



. A. SANLADERER. ELECTRIC LIGHTING APPARATUS FOR VELOGIPEDES.

APPLIOATION FILED JUNE 12,1913.

1,1 1 1,864, Patented Sept. 29, 1914.

W a Q m 7* h c c I w 1; k g z I k 1, P z/ w a/ r x w a z (51 x 2-2 3 1 I t" 5 X Zi'lifliffZia-E i a l 3i M 1 6 5W Inventor:-

Mia/Madam MM Att UNITED STATES PATENT onmon.

ALOIS SANLADERER, F ORTENBURG, NEAR VILSHOFEN, GERMANY. ELECTRIC-LIGHTING APPARATUS FOR VELOCIPEDES.

1,111,864. Specification of Letters Patent Patented Sept. 29, 1914. Application filed June 12, 1913. Serial No. 773,148.

T ll h it may concern; fixedto the armature and the result of the Be it known that I, ALOIS SANLADERER, a, lOtLtIOIl Of the hub is to'drive the field magbj t f th Emperor f G idnets and the armature in opposite directions, ing at 'Ortenb'urg, near Vilshofen, Bavaria, the field magnets be ng carried by the hub 5 i G y, hav i v t d t i w d and the armature driven oppositely thereto useful Improvements in Electric-Lighting y means of the intervening gears above Apparatus for Velocipedes, of which the f e following is a specification. Within the hub, at one side of the wheel This invention relates to lighting appathere 1s a plurality of spiral clutch 65 1o r m f l i d f th t h i a springs z, the innermost convolution of each dy i d, driv b th ti f th of which bears against a ring k fixed to the v l ip d it lf, with th id f a Spring wheel 03. The outermost convolution of each clutch which slips when the output of the P g exerts a pr s re gainst a ring 1 dynamo has increased to a certain predebeefing g u t l opp s ng -Carr ed e '70 5 termin'ed' maximum, due to an increase in 1116M; S d ng 7" IS a split ring, with its the speed of the vehicle and a consequent ends p e ably overlapped as shown by the acceleration of the speed of revolution of Characters 511151 in g- T friction the dynamo. This regulation provides for between the sprlngs 2' and the rings k and r, a substantially constant current for feeding due to the elastic pressure of the springs, is 7.5

the lan ps or other current consuming apsuch that at a 10W speed Of the hub the (l m namo is driven at a speed suflicient to pro- It has hitherto been usual to effect the duce current adequate for lighting. If the drive by means f a f i ti h l t th speed of rotation of the armature becomes rim of one f th v l i d wh l Thi too great, due to the accelerated speed of 25 results in increased wear of the tire, and also rotation of he h b he springs permit such involves placing the dy m a iti a slippage of the clutch as is required to where it is exposed to dust, mud and mois- Prevent any appr ia le increase in the ture. speed of the dynamo.

The object of the present invention is to To allow Of putting the clutch out Of opo obviate these disadvantages. To this end I n, the hollow radial arms Z of a fixture place the dynamo within the hub of the ve- Carried y the a e carry the right angled locipede wheel with the armature mounted hQOkS Whose inn r nds are attached to a to rotate freely on the axle within the hub, Wlre n Which passes through said hollow the spring clutch being likewise placed arms and through the axle b. When the 35 within the hub, to take the drive from the Wire n is P l ed, the hooks 0 are drawn latter. radially inward, into contact with the split Two embodiments of the invention are rlng T, which is compressed thereby. The illustrated in the accompanying drawing, in sp i gs are in t rn compressed by the ring hioh r, so that all pressure is removed from the 4 Figure 1 is a section of one embodiment; contacting clutch member 7". Said hooks Fig, 2 is a similar section of the second em- 0 are held in a normal position of radial exbodiment; Fig. 3 is a side elevation of certension by means of springs 0 connecting tain parts ofthe construction shown in Fig. said hooks 0 with the casing A.

2, and Fig. 4 is a plan view of one of these In the construction shown in Figs. 2 to 4 5 parts. Fig. 5 is a detail view of the split the armature, mounted within the hub, is

also driven by means of a train of gear- Referring in the first instance to Fig. 1, a Wheels, one of which is designated 03 in Fig.

designates the armature of the dynamo, 2. Keyed on a boss at the center of this which is mounted by means of ball bearings wheel d is a longitudinal slidable pinion o 50 on the fixed axle b, the field-magnets c behaving lateral ratchet teeth, and serving for ing fixed within the hub A, around the driving the wheel. The clutch consists of armature. The armature is driven by means spring band .9, bent to form a ring having a of a train of gear wheels d, e, f, g, 71.. The gap, and mounted within the hub of the vegear wheel 61? is loose on 'the axle b, and the locipede. To one end of this band is piv- 55 wheels e, 'f, g, b, have bearings on a fixed oted a lever u, connected to the other end of arm Z. The wheel h gears with a pinion the band by a link u and by a spring 2?, so

that the spring 25, acting on the lever 20, expands the ring formed by the band 8, and presses the latter into frictional engagement with the hub. The lever 10 has numerous holes to for attachment of the spring t at various distances from its fulcrum. This enables the clutch action to be regulated. The pinion o is connected to a bell crank 00 (Fig. 2) so that by rocking this bell-crank the pinion can be moved alternatively into and out of engagement with the lever u- The latter is thus used in the manner of a pawl for driving the pinion, as shown in Fig. 4 the armature being thus rendered capable of being connected with or disconnected from the hub at will.

If the clutch-band s is driven in the direction indicated by the arrow at the top, in

Fig. 3, the pinion 1) 1s rotated in the same direction by the lever 14. Reaction due to the load on the pinion is exerted on the lower end of the lever u in the direction indicated by the arrow in Fig. 4, so that the lever stretches the spring t, to a greater or less extent, depending on the speed of the hub. By this means the clutch ring is more or less contracted,.so that it slips, and the speed at which the dynamo is driven is approximately uniform, at all normal speeds of the hu The following provision is ing the current off of the machine. Mounted on the casing, are pins z and g and 2 the latter of which are provided with spring pressed contact members, while the former of these said pins, are wired directly to the field coils 0 c as clearly shown in Fig. 2. The contacts carried by the pins y and 2 ride over contact strips of the collector ring a of the armature a. An insulated contact ring a electrically connected to the pin 2 has a riding contact with a spring pressed lead wire contact 2 the lead wire passing made for takthrough the conduit 2 and out through the hollow shaft 6. The opposite conductor is suitably connected to the casing or some iron portion of the wheel, so that one of the poles is formed by the mass of the material in the machine. The wiring of the collector a, the armature a and the magnet c is the same as in any well known direct current machine.

What I claim as my invention and desire to secure by Letters Patent of the United States is 1. The combination with a rotary casing, of an armature mounted for rotation in said casing, a set of field magnets disposed within said casing, and an elastic driving clutch between said casing and armature for driving the latter oppositely to the casing.

2. The combination, with a rotary casing, of an axle within said casing, a dynamo within said casing having an armature rotatable on said axle, and an elastic clutch within said casing and in frictional engagement therewith, adapted to transmit rotation from said casing to said dynamo, for

the purpose set forth.

3. The combination, with a rotary casing, of an axle within said casing, a dynamo within said casing having an armature r0- tatable on said axle, a ratchet pinion for transmitting rotation to said armature, an elastic circularly curved clutch-band within said casing, a lever-pivoted to said clutchband and adapted to engage the teeth of said ratchet pinion, and a spring attached to said lever and to said clutch-band, expanding the latter against the inner surface of the casing, for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

ALOIS SANLADERER.

Witnesses:

GEoRG FEZZLE, DAVID LOPL. 

